I want to download the raspberry pi extension by thingworx from the thingworx marketplace. When I click on the download button, a submit request page pops up. Its been more than a day that I submitted my request and havent heard back from thingworx. Do I need a paid account for downloading stuff from the marketplace ? If yes, can you please tell me how to do that. Also, I have the latest raspberry pi. Would that be a problem as the extension is for model 2B?